Pert

1. (of a person) Attractive.
2. (of a part of the body) Well-formed, shapely. [from 14th c.]
3. Lively; alert and cheerful; bright. [from 16th c.]
4. (now rare, especially of children or social inferiors) Cheeky, impertinent. [from 15th c.]
5. (obsolete) Open; evident; unhidden; apert. [14th-17th c.]
6. (obsolete) Clever.

cheeky